Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nancy Hernandez Heyne, MD

Individual provider Internal Medicine Physician · NPI 1679951354

Nancy Hernandez Heyne, MD practises Pediatric Medicine in Boston, Massachusetts. Graduated from New York University School of Medicine in 2015, 11 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Rhode Island.

Years since qualifying
11
Trained at
New York University School of Medicine
Licensed in
MA, RI
In the registry since
2015
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Fruit St
Boston, MA 02114
Phone: (617) 726-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 593 Eddy St, Providence, RI 02903-4923 — (401) 444-6118

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 278239 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence LP03301 (RI)
Pediatrics Physician Taxonomy 208000000X · Licence LP03301 (RI)
Pediatrics Physician Taxonomy 208000000X · Licence 278239 (MA)

Record details

NPI number1679951354
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 13, 2015
Last updated in NPPESJune 26, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPEDIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients49
Services billed 50 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Massachusetts General Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3484 clinicians in the practice; 12 are shown here.

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